Cuevas de Bellamar, Matanzas, Kuba, 2016

Blue Lagoon Iceland

The Blue Lagoon on Iceland, a Spa with Blue, natural Water. (Wikipedia:) The Blue Lagoon spa and geothermal complex is
clearly visible from any of the usual satellite imagery sources at coordinates. The rich mineral content is provided by the
underground geological layers and pushed up to the surface by the hot water (at about 1.2 megapascals (170 psi) pressure
and 240 °C (464 °F) temperature) used by the plant. Because of its mineral concentration, water cannot be recycled and
must be disposed of in the nearby landscape, a permeable lava field 50 cm to 1 meter.